package intl;

public class Localcharset{
///* Determine a canonical name for the current locale's character encoding.
//
//   Copyright (C) 2000-2001 Free Software Foundation, Inc.
//
//   This program is free software; you can redistribute it and/or modify it
//   under the terms of the GNU Library General Public License as published
//   by the Free Software Foundation; either version 2, or (at your option)
//   any later version.
//
//   This program is distributed in the hope that it will be useful,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//   Library General Public License for more details.
//
//   You should have received a copy of the GNU Library General Public
//   License along with this program; if not, write to the Free Software
//   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
//   USA.  */
//
///* Written by Bruno Haible <haible@clisp.cons.org>.  */
//
//#ifdef HAVE_CONFIG_H
//# include <config.h>
//#endif
//
//#if HAVE_STDDEF_H
//# include <stddef.h>
//#endif
//
//#include <stdio.h>
//#if HAVE_STRING_H
//# include <string.h>
//#else
//# include <strings.h>
//#endif
//#if HAVE_STDLIB_H
//# include <stdlib.h>
//#endif
//
//#if defined _WIN32 || defined __WIN32__
//# undef WIN32   /* avoid warning on mingw32 */
//# define WIN32
//#endif
//
//#ifndef WIN32
//# if HAVE_LANGINFO_CODESET
//#  include <langinfo.h>
//# else
//#  if HAVE_SETLOCALE
//#   include <locale.h>
//#  endif
//# endif
//#else /* WIN32 */
//# define WIN32_LEAN_AND_MEAN
//# include <windows.h>
//#endif
//
//#ifndef DIRECTORY_SEPARATOR
//# define DIRECTORY_SEPARATOR '/'
//#endif
//
//#ifndef ISSLASH
//# define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
//#endif
//
///* The following static variable is declared 'volatile' to avoid a
//   possible multithread problem in the function get_charset_aliases. If we
//   are running in a threaded environment, and if two threads initialize
//   'charset_aliases' simultaneously, both will produce the same value,
//   and everything will be ok if the two assignments to 'charset_aliases'
//   are atomic. But I don't know what will happen if the two assignments mix.  */
//#if __STDC__ != 1
//# define volatile /* empty */
//#endif
///* Pointer to the contents of the charset.alias file, if it has already been
//   read, else null.  Its format is:
//   ALIAS_1 '\0' CANONICAL_1 '\0' ... ALIAS_n '\0' CANONICAL_n '\0' '\0'  */
//static char * volatile charset_aliases;
//
///* Return a pointer to the contents of the charset.alias file.  */
//static final String
//get_charset_aliases ()
//{
//  char *cp;
//
//  cp = charset_aliases;
//  if (cp == null)
//    {
//#ifndef WIN32
//      FILE *fp;
//      final String dir = LIBDIR;
//      final String base = "charset.alias";
//      char *file_name;
//
//      /* Concatenate dir and base into freshly allocated file_name.  */
//      {
//	size_t dir_len = strlen (dir);
//	size_t base_len = strlen (base);
//	int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1]));
//	file_name = (char *) malloc (dir_len + add_slash + base_len + 1);
//	if (file_name != null)
//	  {
//	    memcpy (file_name, dir, dir_len);
//	    if (add_slash)
//	      file_name[dir_len] = DIRECTORY_SEPARATOR;
//	    memcpy (file_name + dir_len + add_slash, base, base_len + 1);
//	  }
//      }
//
//      if (file_name == null || (fp = fopen (file_name, "r")) == null)
//	/* Out of memory or file not found, treat it as empty.  */
//	cp = "";
//      else
//	{
//	  /* Parse the file's contents.  */
//	  int c;
//	  char buf1[50+1];
//	  char buf2[50+1];
//	  char *res_ptr = null;
//	  size_t res_size = 0;
//	  size_t l1, l2;
//
//	  for (;;)
//	    {
//	      c = getc (fp);
//	      if (c == EOF)
//		break;
//	      if (c == '\n' || c == ' ' || c == '\t')
//		continue;
//	      if (c == '#')
//		{
//		  /* Skip comment, to end of line.  */
//		  do
//		    c = getc (fp);
//		  while (!(c == EOF || c == '\n'));
//		  if (c == EOF)
//		    break;
//		  continue;
//		}
//	      ungetc (c, fp);
//	      if (fscanf(fp, "%50s %50s", buf1, buf2) < 2)
//		break;
//	      l1 = strlen (buf1);
//	      l2 = strlen (buf2);
//	      if (res_size == 0)
//		{
//		  res_size = l1 + 1 + l2 + 1;
//		  res_ptr = malloc (res_size + 1);
//		}
//	      else
//		{
//		  res_size += l1 + 1 + l2 + 1;
//		  res_ptr = realloc (res_ptr, res_size + 1);
//		}
//	      if (res_ptr == null)
//		{
//		  /* Out of memory. */
//		  res_size = 0;
//		  break;
//		}
//	      strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
//	      strcpy (res_ptr + res_size - (l2 + 1), buf2);
//	    }
//	  fclose (fp);
//	  if (res_size == 0)
//	    cp = "";
//	  else
//	    {
//	      *(res_ptr + res_size) = '\0';
//	      cp = res_ptr;
//	    }
//	}
//
//      if (file_name != null)
//	free (file_name);
//
//#else /* WIN32 */
//
//      /* To avoid the troubles of installing a separate file in the same
//	 directory as the DLL and of retrieving the DLL's directory at
//	 runtime, simply inline the aliases here.  */
//
//      cp = "CP936" "\0" "GBK" "\0" +
//	   "CP1361" "\0" "JOHAB" "\0";
//#endif
//
//      charset_aliases = cp;
//    }
//
//  return cp;
//}
//
///* Determine the current locale's character encoding, and canonicalize it
//   into one of the canonical names listed in config.charset.
//   The result must not be freed; it is statically allocated.
//   If the canonical name cannot be determined, the result is a non-canonical
//   name.  */
//
//final String locale_charset ();
//
//#ifdef STATIC
//STATIC
//#endif
//final String
//locale_charset ()
//{
//  final String codeset;
//  final String aliases;
//
//#ifndef WIN32
//
//# if HAVE_LANGINFO_CODESET
//
//  /* Most systems support nl_langinfo (CODESET) nowadays.  */
//  codeset = nl_langinfo (CODESET);
//
//# else
//
//  /* On old systems which lack it, use setlocale or getenv.  */
//  final String locale = null;
//
//  /* But most old systems don't have a complete set of locales.  Some
//     (like SunOS 4 or DJGPP) have only the C locale.  Therefore we don't
//     use setlocale here; it would return "C" when it doesn't support the
//     locale name the user has set.  */
//#  if HAVE_SETLOCALE && 0
//  locale = setlocale (LC_CTYPE, null);
//#  endif
//  if (locale == null || locale[0] == '\0')
//    {
//      locale = getenv ("LC_ALL");
//      if (locale == null || locale[0] == '\0')
//	{
//	  locale = getenv ("LC_CTYPE");
//	  if (locale == null || locale[0] == '\0')
//	    locale = getenv ("LANG");
//	}
//    }
//
//  /* On some old systems, one used to set locale = "iso8859_1". On others,
//     you set it to "language_COUNTRY.charset". In any case, we resolve it
//     through the charset.alias file.  */
//  codeset = locale;
//
//# endif
//
//#else /* WIN32 */
//
//  static char buf[2 + 10 + 1];
//
//  /* Win32 has a function returning the locale's codepage as a number.  */
//  sprintf (buf, "CP%u", GetACP ());
//  codeset = buf;
//
//#endif
//
//  if (codeset == null)
//    /* The canonical name cannot be determined.  */
//    codeset = "";
//
//  /* Resolve alias. */
//  for (aliases = get_charset_aliases ();
//       *aliases != '\0';
//       aliases += strlen (aliases) + 1, aliases += strlen (aliases) + 1)
//    if (strcmp (codeset, aliases) == 0
//	|| (aliases[0] == '*' && aliases[1] == '\0'))
//      {
//	codeset = aliases + strlen (aliases) + 1;
//	break;
//      }
//
//  return codeset;
//}
}